CN112376801A - Coincide shear wall edge member of high-efficient configuration vertical reinforcement - Google Patents
Coincide shear wall edge member of high-efficient configuration vertical reinforcement Download PDFInfo
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- CN112376801A CN112376801A CN202011403733.1A CN202011403733A CN112376801A CN 112376801 A CN112376801 A CN 112376801A CN 202011403733 A CN202011403733 A CN 202011403733A CN 112376801 A CN112376801 A CN 112376801A
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 132
- 239000010959 steel Substances 0.000 claims abstract description 132
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 32
- 230000003014 reinforcing effect Effects 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
- E04C5/064—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts the reinforcing elements in each plane being formed by, or forming a, mat of longitunal and transverse bars
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
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Abstract
The invention discloses an edge component of a superposed shear wall efficiently provided with vertical reinforcing steel bars, a vertical hole is reserved in an edge component area of a prefabricated wall, the vertical reinforcing steel bars of an edge component in the wall of a lower prefabricated wall extend out of the top of the lower prefabricated wall, the extending parts of the vertical reinforcing steel bars of the edge component extend into the vertical hole of the edge component of an upper prefabricated wall and are connected with the vertical reinforcing steel bars of the edge component in the wall of the upper prefabricated wall in a lap joint manner, the vertical hole pattern of the edge component area of the prefabricated wall is changed by properly increasing the vertical reinforcing steel bar spacing of the edge component in the wall according to whether the edge component area of the prefabricated wall is connected with the edge component area of post-pouring, the geometric dimension of the edge component area of the prefabricated wall and the design reinforcement distribution condition, partial vertical reinforcing steel bars of the edge component area of the prefabricated wall are arranged in the edge component area of the post-, the high-efficiency reinforcement of the vertical steel bars of the edge members is realized.
Description
Technical Field
The invention belongs to the technical field of buildings, relates to a superposed shear wall, and particularly relates to an edge member of a superposed shear wall efficiently provided with vertical steel bars.
Background
The vertical steel bars of the superposed shear wall are connected in an indirect lap joint mode, compared with a fully prefabricated shear wall, the superposed shear wall has low requirements on processing and mounting precision, can effectively reduce the connection cost of the prefabricated wall, has controllable connection quality, and is an assembled concrete structure system which meets the current Chinese situation. The existing superposed shear walls applied to practical engineering in China can be divided into two categories, one category of superposed shear walls is provided with a continuous cavity along the thickness middle direction, prefabricated concrete wall plates on two sides are connected into a whole through a steel bar truss or a planar steel bar welding net, for example, a double-sided superposed shear wall and an SPCS steel bar welding net superposed shear wall, and the arrangement of vertical steel bars of edge members of the superposed shear wall is relatively flexible due to the adoption of the continuous cavity; the prefabricated concrete wall boards on two sides of the other type of superposed shear wall are connected into a whole through concrete longitudinal ribs, vertical holes are arranged among the longitudinal ribs, the lap joint of the vertical reinforcing steel bars of the upper and lower laminated shear wall is realized in the vertical hole, such as EVE prefabricated hollow wall boards, longitudinal rib laminated shear walls, prefabricated round hole plate shear walls and the like, the vertical reinforcing steel bars of edge components of the laminated shear wall need to be arranged on the periphery of the vertical hole, the vertical reinforcing steel bars of the edge components are arranged to be mutually influenced with the position of the vertical hole, the existing vertical reinforcing steel bars of the edge components are arranged to be a multi-reference cast-in-place shear wall structure, the vertical reinforcing steel bars of the edge components are small in space and large in number, the vertical post-pouring section and the combination relation of the edge component area of the laminated shear wall are not considered comprehensively, the vertical holes are large in number and the hole cross section is single, and the problems that the processing cost of the prefabricated wall is high.
Disclosure of Invention
In order to overcome the defects caused by the vertical steel bar structure of the edge member of the existing superposed shear wall, the invention aims to provide the edge member of the superposed shear wall with the vertical steel bars efficiently configured, the space between the vertical steel bars of the edge member is properly enlarged according to the position, the geometric dimension and the design reinforcement situation of the edge member of the superposed shear wall, the vertical hole pattern of the edge member area is changed, partial vertical steel bars of the edge member are configured in the area of the post-cast edge member adjacent to the superposed shear wall, the number of the vertical steel bars and the number of the vertical holes in the edge member of the superposed shear wall are reduced, the processing cost of the vertical holes is reduced, and the efficient reinforcement of the vertical steel bars of the edge member of the superposed shear wall is realized.
In order to achieve the purpose, the invention adopts the technical scheme that:
an overlapped shear wall edge component efficiently provided with vertical reinforcing steel bars, a prefabricated wall edge component area 2 is reserved with vertical holes by adopting a vertical pipeline mode and the like, wall inner edge component vertical reinforcing steel bars (21) of a lower prefabricated wall extend out from the top of the lower prefabricated wall, an edge component vertical reinforcing steel bar extending part 22 extends into the vertical holes of an upper prefabricated wall edge component and is in lap joint with the wall inner edge component vertical reinforcing steel bars 21 of an upper prefabricated wall, the space between the wall inner edge component vertical reinforcing steel bars 21 is properly increased according to whether the prefabricated wall edge component area 2 is connected with a post-cast edge component area 3, the geometric dimension and the design reinforcement distribution condition of the prefabricated wall edge component area 2, the vertical hole pattern of the prefabricated wall edge component area 2 is changed, partial edge component vertical reinforcing steel bars are arranged in the post-cast edge component area 3, and the number of the wall inner edge component vertical reinforcing steel bars 21 and the prefabricated wall edge component area 2 vertical holes is reduced, the processing cost of the vertical hole is reduced, and the high-efficiency reinforcement of the vertical reinforcing steel bar of the edge member is realized.
The prefabricated wall edge component area 2 is positioned at the end part of the prefabricated wall 1 and is not connected with the post-cast edge component area 3, and the total reinforcing bar area of the vertical reinforcing bars 21 of the wall inner edge component is not more than 1884m2During the process, 6 vertical steel bars 21 of the wall inner edge member are arranged in the prefabricated wall edge member area 2, a round-angle rectangular-section vertical hole 13 is arranged on the outer side of the lap joint area of the vertical steel bar 21 of the wall inner edge member and an edge member vertical steel bar extending part 22 extending out of the lower prefabricated wall, a round-angle rectangular-section vertical hole 14 is arranged on the inner side of the lap joint area, or two round-angle rectangular-section vertical holes 13 are arranged.
The prefabricated wall edge component area 2 is positioned at the end part of the prefabricated wall 1 and is not connected with the post-cast edge component area 3, and the total reinforcing bar area of the vertical reinforcing bars 21 of the wall inner edge component is more than 1884m2During the process, 8 vertical steel bars 21 of the wall inner edge component are arranged in the prefabricated wall edge component area 2, and two vertical holes 13 with round corners and rectangular cross sections are combined in the lap joint area of the vertical steel bars 21 of the wall inner edge component and the vertical steel bar extending part 22 of the edge component extending out of the lower prefabricated wall.
When the prefabricated wall edge component area 2 is connected with the post-pouring edge component area 3, the post-pouring edge component area 3 is divided into two conditions of being parallel to the direction of the prefabricated wall 1 and being vertical to the direction of the prefabricated wall 1.
The prefabricated wall edge component area 2 is connected with a post-cast edge component area 3 parallel to the direction of the prefabricated wall 1, and when the length a of the prefabricated wall edge component area 2 is 250-400 mm, a fillet rectangular section vertical hole 13 is adopted in the lap joint area of a wall inner edge component vertical steel bar 21 and an edge component vertical steel bar extending part 22 extending out of the lower prefabricated wall; when the length a of the prefabricated wall edge component area 2 is 450-600 mm, a rounded rectangular section vertical hole 13 is formed in one side, away from the post-pouring edge component area 3, of the lap joint area of the wall inner edge component vertical steel bars 21 and edge component vertical steel bar extending parts 22 extending out of the lower prefabricated wall, and a circular section vertical hole 14 is formed in one side, close to the post-pouring edge component area 3; when the length a of the prefabricated wall edge component area 2 is between 650-800 mm, two rounded rectangular section vertical holes 13 are combined in the lap joint area of the wall inner edge component vertical steel bars 21 and the edge component vertical steel bar extending part 22 extending out of the lower prefabricated wall.
The prefabricated wall edge component area 2 is connected with a post-pouring edge component area 3 perpendicular to the direction of the prefabricated wall 1, a vertical hole 14 with a circular cross section is formed in one side, close to the post-pouring edge component area 3, of the prefabricated wall edge component area 2, and when the length a of the prefabricated wall edge component area 2 is 450-600 mm, a vertical hole 13 with a round-angle rectangular cross section is formed in one side, far away from the post-pouring edge component area 3, of the prefabricated wall edge component area 2; when the length a of the prefabricated wall edge component area 2 is between 650 mm and 800mm, combining a rounded rectangular section vertical hole 13 and a circular section vertical hole 14 on one side of the prefabricated wall edge component area 2, which is far away from the post-pouring edge component area 3; when the length a of the prefabricated wall edge component area 2 is between 850-1000 mm, one side, far away from the post-pouring edge component area 3, of the prefabricated wall edge component area 2 is combined by two round-angle rectangular-section vertical holes 13.
Specifically, the outer sides of four corners of the rounded rectangular cross-section vertical hole 13 are respectively provided with one vertical steel bar 21 of the wall inner edge member, or only two corners of one side of the rounded rectangular cross-section vertical hole 13 are respectively provided with one vertical steel bar 21 of the wall inner edge member, and the center distance b between the vertical steel bars 21 of the adjacent wall inner edge members along the length direction of the prefabricated wall 1 is 160-200 mm.
And when one side of the circular-section vertical hole 14 is provided with two vertical steel bars 21 of the wall inner edge member, and the circular-section vertical hole 14 is close to one side of the post-cast edge member area 3 perpendicular to the direction of the prefabricated wall 1, one side of the circular-section vertical hole close to the post-cast edge member area 3 is provided with two vertical constructional steel bars 26 of the edge member, the diameter of which is 8-10 mm.
The distance between the vertical steel bar 21 of the inner edge member of the side wall of the circular-section vertical hole 14 and the vertical steel bar 21 of the inner edge member of the side wall of the adjacent round-angle rectangular-section vertical hole 13 is 160-200 mm.
Particularly, in order to ensure that the limb distance of the prefabricated wall edge component stirrup 23 and the prefabricated wall edge component tie bar 24 along the horizontal direction and the distance between the vertical steel bars 21 of the adjacent wall inner edge component or the vertical steel bars 31 of the edge component in the post-cast edge component area meet the requirements of the existing design specifications, the center distance e between the vertical steel bars 21 of the wall inner edge component in the prefabricated wall edge component area 2 close to the post-cast edge component area 3 and the vertical steel bars 31 of the edge component in the adjacent post-cast edge component area is 90-200 mm; when the prefabricated wall edge component area 2 is connected with the post-cast edge component area 3 perpendicular to the direction of the prefabricated wall 1, the center distance f between the innermost wall inner edge component vertical steel bars 21 at one end of the prefabricated wall edge component area 2 far away from the post-cast edge component area 3 and the wall inner edge component vertical steel bars 21 close to the periphery of the circular section vertical hole 14 of the post-cast edge component area 3 is 50-200 mm.
Compared with the prior art, the invention has the beneficial effects that:
(1) the number of the vertical steel bars in the overlapped shear wall edge member can be effectively reduced, the requirement of the overlapped connection of the vertical steel bars in the overlapped shear wall edge member on the vertical holes is reduced, the number of the vertical holes is reduced, and the processing cost of the prefabricated wall is reduced.
(2) Through the change of the hole pattern of the vertical hole, the requirement of lap joint of vertical steel bars in a part of edge members is met by means of the vertical hole with the circular cross section, the use of the vertical hole with the rectangular cross section of a fillet is reduced, and the cost input for forming the vertical hole is favorably controlled.
(3) And part of the vertical steel bars are distributed in the post-cast edge component area and are connected by adopting a mechanical joint, so that the lap joint proportion of the vertical steel bars of the edge component can be reduced, the reliability of the connection of the vertical steel bars of the edge component area is improved, and the steel consumption is reduced.
(4) After the structure is adopted, the space between the vertical steel bars and the vertical holes in the edge component area of the superposed shear wall is increased, so that the embedded arrangement of equipment pipelines, wire boxes and the like is facilitated, and the mutual interference is reduced.
Drawings
FIG. 1 is a typical three-dimensional representation of a laminated shear wall edge member with efficiently deployed vertical rebar of the present invention, where the precast wall edge member area is at the precast wall end and is not connected to the post-cast edge member area.
FIG. 2 is a schematic cross-sectional view of the vertical rebar lap joint area A-A of the edge member of FIG. 1, wherein the total rebar distribution area of the edge member vertical rebar in the wall is no greater than 1884m2。
FIG. 3 is a schematic cross-sectional view of the overlapped area of the vertical reinforcements of the edge members, wherein the total reinforcement area of the vertical reinforcements of the edge members in the wall is not more than 1884m2And two round corner rectangular cross section vertical holes are arranged.
FIG. 4 is a schematic cross-sectional view of the overlapped area of the vertical reinforcements of the edge members, wherein the total reinforcement area of the vertical reinforcements of the edge members in the wall is larger than 1884m2And two round corner rectangular cross section vertical holes are arranged.
FIG. 5 is a schematic structural view illustrating the connection between an edge member area of a prefabricated wall and a post-cast edge member area parallel to the direction of the prefabricated wall according to the present invention, wherein the length a of the edge member area of the prefabricated wall is between 250 and 400 mm.
FIG. 6 is a schematic structural view illustrating the connection between an edge member area of a prefabricated wall and a post-cast edge member area parallel to the direction of the prefabricated wall according to the present invention, wherein the length a of the edge member area of the prefabricated wall is 450-600 mm.
FIG. 7 is a schematic structural view illustrating the connection between an edge member area of a prefabricated wall and a post-cast edge member area parallel to the direction of the prefabricated wall according to the present invention, wherein the length a of the edge member area of the prefabricated wall is between 650 mm and 800 mm.
FIG. 8 is a schematic structural view illustrating the connection between an edge member area of a prefabricated wall and a post-cast edge member area perpendicular to the direction of the prefabricated wall according to the present invention, wherein the length a of the edge member area of the prefabricated wall is 450-600 mm.
FIG. 9 is a schematic structural view illustrating the connection between an edge member area of a prefabricated wall and a post-cast edge member area perpendicular to the direction of the prefabricated wall according to the present invention, wherein the length a of the edge member area of the prefabricated wall is between 650 mm and 800 mm.
FIG. 10 is a schematic structural view illustrating the connection between an edge member area of a prefabricated wall and a post-cast edge member area perpendicular to the direction of the prefabricated wall according to the present invention, wherein the length a of the edge member area of the prefabricated wall is between 850 mm and 1000 mm.
In the figure: 1-prefabricating a wall; 2-prefabricated wall edge member area; 3-post-pouring edge member area; 11-a vertical pipeline I; 12-a vertical pipe II; 13-vertical holes with round corner and rectangular cross section; 14-vertical holes of circular section; 21-vertical steel bars of wall inner edge members; 22-edge member vertical rebar extensions; 23-prefabricating wall edge member stirrups; 24-prefabricated wall edge member lacing wire; 25-extending the horizontal connecting steel bars out of the prefabricated wall; 26-edge member vertical construction rebar; 31-post-cast edge member area edge member vertical steel bar
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings and examples.
Referring to fig. 1 to 10, the superimposed shear wall edge member efficiently provided with vertical steel bars according to the present invention optimizes and improves the geometrical size and the design reinforcement situation of the prefabricated wall edge member region 2 according to whether the prefabricated wall edge member region 2 is connected with the post-cast edge member region 3, appropriately increases the space between the vertical steel bars 21 of the wall inner edge member, changes the vertical hole pattern of the prefabricated wall edge member region 2, disposes part of the vertical steel bars of the edge member in the post-cast edge member region 3, reduces the number of the vertical holes of the wall inner edge member vertical steel bars 21 and the prefabricated wall edge member region 2, reduces the processing cost of the vertical holes, and realizes the efficient reinforcement of the edge member vertical steel bars.
In the invention, the prefabricated wall edge component area 2 is located in three conditions, namely, the prefabricated wall edge component area 2 is located at the end part of the prefabricated wall 1 and is not connected with the post-pouring edge component area 3, the prefabricated wall edge component area 2 is connected with the post-pouring edge component area 3 parallel to the direction of the prefabricated wall 1, and the prefabricated wall edge component area 2 is connected with the post-pouring edge component area 3 perpendicular to the direction of the prefabricated wall 1.
Specifically, the prefabricated wall edge component area 2 is positioned at the end part of the prefabricated wall 1 and is not connected with the post-cast edge component area 3, and the total reinforcing bar area of the vertical reinforcing bars 21 of the wall inner edge component is not more than 1884m2During the process, 6 vertical steel bars 21 of the wall inner edge member are arranged in the prefabricated wall edge member area 2, a round rectangular cross section vertical hole 13 is preferentially arranged on the outer side of the lap joint area of the vertical steel bar 21 of the wall inner edge member and the vertical steel bar extending part 22 of the edge member extending out of the lower prefabricated wall, a round cross section vertical hole 14 is arranged on the inner side of the lap joint area of the vertical steel bar 21 of the wall inner edge member and the vertical steel bar extending part 22 of the edge member extending out of the lower prefabricated wall, so that the use of. The prefabricated wall edge component area 2 is positioned at the end part of the prefabricated wall 1 and is not connected with the post-cast edge component area 3, and the total reinforcing bar area of the vertical reinforcing bars 21 of the wall inner edge component is more than 1884m2During the process, 8 vertical steel bars 21 of the wall inner edge component are arranged in the prefabricated wall edge component area 2, and two vertical holes 13 with round corners and rectangular cross sections are combined in the lap joint area of the vertical steel bars 21 of the wall inner edge component and the vertical steel bar extending part 22 of the edge component extending out of the lower prefabricated wall.
When the prefabricated wall edge member area 2 is connected with the post-cast edge member area 3 parallel to the direction of the prefabricated wall 1, different vertical hole patterns are adopted in the prefabricated wall edge member area 2 according to the length a of the prefabricated wall edge member area 2. When the length a of the prefabricated wall edge component area 2 is 250-400 mm, a fillet rectangular section vertical hole 13 is adopted in the lap joint area of the wall inner edge component vertical steel bar 21 and an edge component vertical steel bar extending part 22 extending out of the lower prefabricated wall; when the length a of the prefabricated wall edge component area 2 is 450-600 mm, a rounded rectangular section vertical hole 13 is formed in one side, away from the post-pouring edge component area 3, of the lap joint area of the wall inner edge component vertical steel bars 21 and edge component vertical steel bar extending parts 22 extending out of the lower prefabricated wall, and a circular section vertical hole 14 is formed in one side, close to the post-pouring edge component area 3; when the length a of the prefabricated wall edge component area 2 is between 650-800 mm, two rounded rectangular section vertical holes 13 are combined in the lap joint area of the wall inner edge component vertical steel bars 21 and the edge component vertical steel bar extending part 22 extending out of the lower prefabricated wall.
The prefabricated wall edge component area 2 is connected with a post-pouring edge component area 3 perpendicular to the direction of the prefabricated wall 1, a vertical hole 14 with a circular cross section is formed in one side, close to the post-pouring edge component area 3, of the prefabricated wall edge component area 2, and when the length a of the prefabricated wall edge component area 2 is 450-600 mm, a vertical hole 13 with a round-angle rectangular cross section is formed in one side, far away from the post-pouring edge component area 3, of the prefabricated wall edge component area 2; when the length a of the prefabricated wall edge component area 2 is between 650 mm and 800mm, combining a rounded rectangular section vertical hole 13 and a circular section vertical hole 14 on one side of the prefabricated wall edge component area 2, which is far away from the post-pouring edge component area 3; when the length a of the prefabricated wall edge component area 2 is between 850-1000 mm, one side, far away from the post-pouring edge component area 3, of the prefabricated wall edge component area 2 is combined by two round-angle rectangular-section vertical holes 13.
For the round-angle rectangular section vertical hole 13, a wall inner edge member vertical steel bar 21 is respectively configured at the outer sides of four corners of the round-angle rectangular section vertical hole 13, a wall inner edge member vertical steel bar 21 can be configured at two corners of one side of the round-angle rectangular section vertical hole 13, and the center distance b of the adjacent wall inner edge member vertical steel bars 21 along the length direction of the prefabricated wall 1 is 160-200 mm.
For the vertical hole 14 with the circular section, only two vertical reinforcing steel bars 21 of the wall inner edge member are arranged on one side, and when the vertical hole 14 with the circular section is close to one side of the post-cast edge member area 3 perpendicular to the direction of the prefabricated wall 1, two vertical structural reinforcing steel bars 26 of the edge member with the diameter of 8-10 mm are arranged on one side close to the post-cast edge member area 3.
Particularly, in order to ensure that the limb distance of the prefabricated wall edge component stirrup 23 and the prefabricated wall edge component tie bar 24 along the horizontal direction and the distance between the vertical steel bars 21 of the adjacent wall inner edge component or the vertical steel bars 31 of the edge component in the post-cast edge component area meet the requirements of the existing design specifications, the center distance e between the vertical steel bars 21 of the wall inner edge component in the prefabricated wall edge component area 2 close to the post-cast edge component area 3 and the vertical steel bars 31 of the edge component in the adjacent post-cast edge component area is 90-200 mm; when the prefabricated wall edge component area 2 is connected with the post-cast edge component area 3 perpendicular to the direction of the prefabricated wall 1, the center distance f between the innermost wall inner edge component vertical steel bars 21 at one end of the prefabricated wall edge component area 2 far away from the post-cast edge component area 3 and the wall inner edge component vertical steel bars 21 close to the periphery of the circular section vertical hole 14 of the post-cast edge component area 3 is 50-200 mm.
FIGS. 1 and 2 provide a schematic representation of the construction of the invention applied to the edge section of a prefabricated wall at the end of the prefabricated wall and not connected to the post-cast edge section, the total reinforcement area of the vertical reinforcements 21 of the edge section in the wall being not more than 1884m2The length a of prefabricated wall edge element area 21 is about 400 mm. Prefabricated wall edge component region 2 only needs to dispose 6 vertical reinforcing bars 21 of wall interior edge component, sets up a fillet rectangular cross section vertical hole 13 in the outside of prefabricated wall edge component region 21, and the inboard sets up a circular cross section vertical hole 14, and wherein fillet rectangular cross section vertical hole 13 adopts vertical pipeline 11 to occupy the place and form when prefabricated wall 1 adds man-hour, and circular cross section vertical hole 14 adopts vertical pipeline 12 to occupy the place and form when prefabricated wall 1 adds man-hour. Prefabricated wall edge component area 21 arranges in the vertical hole of fillet rectangular cross section 13, the vertical hole of circular cross section 14 outside, the vertical reinforcing bar of edge component that lower floor's prefabricated wall stretches out stretches into the vertical hole of upper prefabricated wall fillet rectangular cross section 13, inside the vertical hole of circular cross section 14, realize prefabricated wall edge component area 21, the lap joint of the vertical reinforcing bar of edge component that lower floor's prefabricated wall stretches out 22 behind the post-cast concrete in pouring fillet rectangular cross section vertical hole 13, the vertical hole of circular cross section 14.
The four corner outsides of the round-corner rectangular-section vertical hole 13 are respectively provided with one vertical steel bar 21 of the wall inner edge member, and the round-section vertical hole 14 is only provided with two vertical steel bars 21 of the wall inner edge member at one side far away from the round-corner rectangular-section vertical hole 13. In order to ensure that the limb distance of the prefabricated wall edge component stirrup 23 and the prefabricated wall edge component lacing wire 24 along the horizontal direction meets the requirement of the existing design specification, the center distance b of the vertical steel bars 21 of the wall inner edge component at four corners of the vertical hole 13 with the round-angle rectangular section along the length direction of the prefabricated wall 1 is 160-200 mm, and the center distance c between the vertical steel bar 21 of the wall inner edge component at one side of the vertical hole 14 with the circular section and the vertical steel bar 21 of the wall inner edge component at one side of the adjacent vertical hole 13 with the round-angle rectangular section is 160-200 mm.
Fig. 3 provides another embodiment of the prefabricated wall edge element area shown in fig. 1 and 2, and based on the construction shown in fig. 1 and 2, a vertical hole 13 with a round rectangular cross section is used instead of the vertical hole 14 with a circular cross section on the inner side.
FIG. 4 provides a schematic view of the construction of the present invention applied to the edge member area of a prefabricated wall which is not connected with the edge member area of a post-cast wall at the end of the prefabricated wall, the total reinforcing area of the vertical reinforcing steel bars 21 of the edge member in the wall is more than 1884m2. 8 vertical steel bars 21 of wall inner edge components are arranged in the prefabricated wall edge component area 2, and two vertical holes 13 with round-angle rectangular cross sections are combined in the lap joint area of the vertical steel bars 21 of the wall inner edge components and the vertical steel bar extending parts 22 of the edge components extending out of the lower prefabricated wall. The outer sides of four corners of each round-angle rectangular-section vertical hole 13 are respectively provided with a wall inner edge member vertical steel bar 21, and the center distance d between the two round-angle rectangular-section vertical holes 13 and the wall inner edge member vertical steel bar 21 is 80-120 mm.
FIG. 5 provides a structural schematic diagram of the prefabricated wall edge member area 2 having a length a of 250-400 mm when the prefabricated wall edge member area is connected with a post-cast edge member area parallel to the direction of the prefabricated wall according to the present invention. The prefabricated wall edge component area 2 and the post-cast edge component area 3 are connected through the prefabricated wall extending horizontal connecting steel bars 25. The end, far away from the post-cast edge member area 3, of the prefabricated wall edge member area 2 is provided with a round-angle rectangular section vertical hole 13, only one wall inner edge member vertical steel bar 21 is arranged on the outer sides of four corners of the round-angle rectangular section vertical hole 13 in the prefabricated wall edge member area 2, and the center distance b of the wall inner edge member vertical steel bar 21 in the length direction of the prefabricated wall 1 is 160-200 mm. Two post-cast edge member area vertical steel bars 31 are arranged in the post-cast edge member area 3 close to the precast wall edge member area 2, and the post-cast edge member area edge member vertical steel bars 31 and the wall inner edge member vertical steel bars 21 are jointly used as shear wall edge member vertical steel bars. The center distance e between the vertical steel bars 31 of the edge member in the post-cast edge member area and the vertical steel bars 21 of the edge member in the adjacent wall is 90-200 mm.
Further, when the length a of the prefabricated wall edge member region 2 in fig. 6 is increased to 450-600 mm, a rounded rectangular cross section vertical hole 13 is formed in one side, away from the post-cast edge member region 3, of the lap joint region of the wall inner edge member vertical steel bars 21 and the edge member vertical steel bar extending portion 22 extending from the lower prefabricated wall, a circular cross section vertical hole 14 is formed in one side, close to the post-cast edge member region 3, of the lap joint region, the wall inner edge member vertical steel bars 21 are respectively arranged on the outer sides of four corners of the rounded rectangular cross section vertical hole 13, and two wall inner edge member vertical steel bars 21 are only arranged on one side, away from the rounded rectangular cross section vertical hole 13, of the circular cross section vertical hole 14.
Further, when the length a of the prefabricated wall edge member region 2 in fig. 7 is increased to 650-800 mm, the lap joint region of the wall inner edge member vertical steel bars 21 and the edge member vertical steel bar extending part 22 extending from the lower prefabricated wall is formed by combining two rounded rectangular section vertical holes 13, and the center distance d of the wall inner edge member vertical steel bars 21 between the two rounded rectangular section vertical holes 13 is 80-200 mm.
FIG. 8 is a schematic view showing the structure of the prefabricated wall edge member region 2 when the prefabricated wall edge member region is connected with the post-cast edge member region perpendicular to the direction of the prefabricated wall, wherein the length a of the prefabricated wall edge member region is 450-600 mm. A vertical hole 14 with a circular cross section is arranged on one side, close to the post-pouring edge member area 3, of the prefabricated wall edge member area 2, and a vertical hole 13 with a round-angle rectangular cross section is arranged on one side, far away from the post-pouring edge member area 3. Two vertical wall edge member reinforcing steel bars 21 are arranged on one side of the circular-section vertical hole 14 far away from the post-cast edge member area 3, and two vertical edge member structural reinforcing steel bars 26 with the diameter of 8-10 mm are arranged on one side of the circular-section vertical hole near the post-cast edge member area 3. The center distance f between the innermost wall inner edge member vertical steel bars 21 at one end far away from the post-cast edge member area 3 and the wall inner edge member vertical steel bars 21 around the circular-section vertical hole 14 close to the post-cast edge member area 3 is 50-200 mm. Two post-cast edge member area vertical steel bars 31 are arranged in the post-cast edge member area 3 close to the precast wall edge member area 2, and the post-cast edge member area edge member vertical steel bars 31 and the wall inner edge member vertical steel bars 21 are jointly used as shear wall edge member vertical steel bars.
Further, when the length a of the prefabricated wall edge member area 2 in fig. 9 is increased to 650-800 mm, a combination of a rounded rectangular section vertical hole 13 and a circular section vertical hole 14 is adopted on the side of the prefabricated wall edge member area 2 away from the post-cast edge member area 3.
Further, when the length a of the prefabricated wall edge member area 2 in the graph 10 is increased to 850-1000 mm, the side, away from the post-pouring edge member area 3, of the prefabricated wall edge member area 2 is combined by adopting two round-corner rectangular section vertical holes 13.
In summary, according to the position, the geometric dimension and the design reinforcement situation of the edge member of the superimposed shear wall, the invention properly enlarges the vertical reinforcement interval of the edge member, changes the vertical hole pattern of the edge member region, and disposes part of the edge member vertical reinforcements in the region of the post-cast edge member adjacent to the superimposed shear wall, thereby reducing the number of vertical reinforcements and the number of vertical holes in the edge member of the superimposed shear wall, reducing the processing cost of the vertical holes, and realizing the high-efficiency reinforcement of the edge member vertical reinforcements of the superimposed shear wall.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes and substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An overlapped shear wall edge component capable of efficiently configuring vertical reinforcing steel bars is characterized in that according to whether the prefabricated wall edge component area (2) is connected with a post-cast edge component area (3) or not, the geometric size and the design reinforcement configuration condition of the prefabricated wall edge component area (2), the distance between the vertical reinforcing steel bars (21) of the wall inner edge component is increased, the vertical hole pattern of the prefabricated wall edge component area (2) is changed, and part of the vertical reinforcing steel bars (21) of the wall inner edge component are configured in the post-cast edge component area (3), the number of vertical steel bars (21) of the edge member in the wall and the number of vertical holes of the prefabricated wall edge member area (2) are reduced.
2. A superimposed shear wall edge member with highly effective deployment of vertical reinforcing bars according to claim 1, characterized in that the prefabricated wall edge member area (2) is located at the end of the prefabricated wall (1) and is not connected with the post-cast edge member area (3), the total reinforcing bar area of the vertical reinforcing bars (21) of the wall inner edge member of the prefabricated wall (1) is not more than 1884m2During the process, 6 vertical steel bars (21) of the wall inner edge component are arranged in the prefabricated wall edge component area (2), a round-angle rectangular-section vertical hole (13) is arranged on the outer side of the lap joint area of the vertical steel bar (21) of the wall inner edge component and the vertical steel bar extending part (22) of the edge component extending out of the lower prefabricated wall, a round-angle rectangular-section vertical hole (14) is arranged on the inner side of the lap joint area, or two round-angle rectangular-section vertical holes (13) are arranged.
3. A superimposed shear wall edge member with highly effective deployment of vertical reinforcing bars according to claim 1, characterized in that the prefabricated wall edge member area (2) is located at the end of the prefabricated wall (1) and is not connected with the post-cast edge member area (3), the total reinforcing bar area of the vertical reinforcing bars (21) of the wall inner edge member of the prefabricated wall (1) is larger than 1884m2During the process, 8 vertical steel bars (21) of the wall inner edge component are arranged in the prefabricated wall edge component area (2), and the lap joint area of the vertical steel bars (21) of the wall inner edge component and the vertical steel bar extending part (22) of the edge component extending out of the lower prefabricated wall is combined by two vertical holes (13) with round-angle rectangular cross sections.
4. The superimposed shear wall edge member with efficiently allocated vertical steel bars according to claim 1, characterized in that the prefabricated wall edge member area (2) is connected with the post-cast edge member area (3) parallel to the direction of the prefabricated wall (1), when the length a of the prefabricated wall edge member area (2) is between 250 and 400mm, a vertical hole (13) with a round rectangular section is adopted in the overlapping area of the vertical steel bars (21) of the wall inner edge member and the vertical steel bar extending part (22) of the edge member extending from the lower prefabricated wall; when the length a of the prefabricated wall edge component area (2) is 450-600 mm, a round-angle rectangular-section vertical hole (13) is formed in one side, away from the post-pouring edge component area (3), of the lap joint area of the wall inner edge component vertical steel bar (21) and an edge component vertical steel bar extending part (22) extending out of the lower prefabricated wall, and a round-section vertical hole (14) is formed in one side, close to the post-pouring edge component area (3); when the length a of the prefabricated wall edge component area (2) is 650-800 mm, the lap joint area of the vertical steel bars (21) of the edge component in the wall and the vertical steel bar extending part (22) of the edge component extending out of the lower prefabricated wall is combined by two round-angle rectangular section vertical holes (13).
5. The superimposed shear wall edge member with the efficiently allocated vertical reinforcing steel bars according to claim 1, wherein the prefabricated wall edge member area (2) is connected with the post-cast edge member area (3) which is perpendicular to the direction of the prefabricated wall (1), a vertical hole (14) with a circular cross section is arranged on one side, close to the post-cast edge member area (3), of the prefabricated wall edge member area (2), and when the length a of the prefabricated wall edge member area (2) is 450-600 mm, a vertical hole (13) with a round-angle rectangular cross section is arranged on one side, far away from the post-cast edge member area (3), of the prefabricated wall edge member area (2); when the length a of the prefabricated wall edge component area (2) is between 650 mm and 800mm, combining a rounded rectangular section vertical hole (13) and a circular section vertical hole (14) on one side of the prefabricated wall edge component area (2) far away from the post-pouring edge component area (3); when the length a of the prefabricated wall edge component area (2) is between 850-1000 mm, one side, far away from the post-pouring edge component area (3), of the prefabricated wall edge component area (2) is combined by two round-angle rectangular-section vertical holes (13).
6. A superimposed shear wall edge member with efficiently arranged vertical reinforcing steel bars according to claim 2, 3, 4 or 5, characterized in that one wall inner edge member vertical reinforcing steel bar (21) is arranged at each of the four corners of the rounded rectangular cross-section vertical hole (13), or one wall inner edge member vertical reinforcing steel bar (21) is arranged at each of the two corners of one side of the rounded rectangular cross-section vertical hole (13), and the center-to-center distance b between the adjacent wall inner edge member vertical reinforcing steel bars (21) along the length direction of the prefabricated wall (1) is 160-200 mm.
7. A superimposed shear wall edge member with efficiently arranged vertical steel bars according to claim 2, 3, 4 or 5, characterized in that two vertical wall edge member steel bars (21) are arranged on one side of the vertical hole (14) with the circular cross section, and when the vertical hole (14) with the circular cross section is close to one side of the post-cast edge member area (3) vertical to the direction of the precast wall (1), two vertical edge member construction steel bars (26) with the diameter of 8-10 mm are arranged on one side close to the post-cast edge member area (3).
8. A superimposed shear wall edge member with efficiently arranged vertical steel bars according to claim 2, 3, 4 or 5, characterized in that the distance c between the vertical steel bars (21) of the inner edge member of the side wall of the circular-section vertical hole (14) and the vertical steel bars (21) of the inner edge member of the side wall of the adjacent round-angle rectangular-section vertical hole (13) is 160-200 mm.
9. A superimposed shear wall edge member with efficiently arranged vertical steel bars according to claim 4 or 5, characterized in that the center distance e between the vertical steel bars (21) of the wall inner edge member close to the precast wall edge member region (2) and the vertical steel bars (31) of the edge member of the adjacent post-cast edge member region is 90-200 mm.
10. A superimposed shear wall edge member with efficiently arranged vertical reinforcing bars according to claim 5, characterized in that the center-to-center distance f between the innermost wall inner edge member vertical reinforcing bar (21) at one end of the prefabricated wall edge member area (2) far away from the post-cast edge member area (3) and the wall inner edge member vertical reinforcing bar (21) near the periphery of the circular section vertical hole (14) of the post-cast edge member area (3) is 50-200 mm.
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